Playing a game of Tic Tac Toe is a great way to review topics! Students work together in pairs to complete 16 questions.
This one reviews Operations with Square Roots -- simplifying, adding, subtracting, multiplying, and rationalizing the denominator. The problems vary in degree of difficulty.
Students like this type of review because they can get help from their partner, but are still in a competition to win the game.
Other fun reviews for radicals:
Radicals Review Scavenger Hunt
Radicals Raceway: A Fun Powerpoint Review
For more fun ways to review important topics, try these:
Fun PowerPoint Review Games
Tic Tac Toes